Securikey Personal Metal Detector PMDM7

Used to detect the presence of metals: pocket knife at 150mm; steel key ring at 125mm; razor blade at 75mm; hat pin at 25mm. Ideal for use where security is paramount. Operated by 9V battery (included). Battery level indicator. Red LED and alarm indicate the presence of metals. Complete with safety wrist strap and earphone jack for discreet use.